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【单选题】
直流电动机转速不正常的故障原因主要有( )。
A.
换向器表面有油污
B.
接线错误
C.
无励磁电流
D.
励磁绕组接触不良
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【简答题】Passage Three:Questions 21 to 25 are based on the following passage. What might driving on an automated highway be like? The answer depends on what kind of sys tem is ultimately adopted. Two distinct ...
【判断题】唯物论认识论的基本原则和核心是可知论
A.
正确
B.
错误
【判断题】蛋白质的等电点通常在碱性范围内。
A.
正确
B.
错误
【单选题】(2017原创)—Do all of you agree to help the old man in that yard next Sunday morning?—Yes, and we ______there in time.
A.
arrive
B.
arrived
C.
will arrive
D.
have arrived
【多选题】计件工资是按照劳动者在单位时间内完成的合格产品的数量来计算工资报酬的,包括( )。
A.
按计时工资标准支付给个人的工资报酬
B.
按工作任务包干方法支付给个人的工资报酬
C.
按营业额提成或利润提成办法支付给个人的工资
D.
实行超额累进计件,按劳动部门批准的定额和计件单价支付给个人的工资报酬
E.
按工作时间支付给个人的工资报酬
【单选题】蛋白质的等电点通常在()范围内。
A.
酸性
B.
碱性
C.
中性
D.
不确定
【单选题】在刚性防水屋面中,每m3混凝土中所用水泥量应为( )
A.
200kg
B.
300kg
C.
280kg
D.
340kg
【单选题】( )(原创)He failed once. Can you let him have ________ try?
A.
a second
B.
the second
C.
second
D.
two
【简答题】Most people are aware of what the adoption process is because it has become rather common in our society. Adoption is where a child is legally placed with guardians (监护人) or parents (or perhaps a sing...
【单选题】关于褶皱要素描述,以下不正确的是()
A.
褶皱翼间角小于 180 度。
B.
枢纽是脊点或槽点的连线
C.
地质图中,轴迹与枢纽可以投影垂直
D.
轴面是一个由各层相邻枢纽组成的假想的面
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